GOST 31298 2-2005 Noise of machines Determination of sound insulation performances of enclosures Part 2 Measurements in situ for acceptance and verification of declared noise perfo.pdf

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1、 2 ISO 11546-2:1995Acoustics Determination of sound insulation performances of enclosures Part 2: Measurements in situ (for acceptance and verification purposes)(MOD) , ()INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION(ISC)31298.22005( 11546-2:1995)62005/84, - 1.092 . - 1.297 . ,

2、 . , , -, 1 - - , - 42 3 , (- 28 9 2005 .) : ( 3166) 00497 ( 3166) 00497 AZAMBYKZKGMDRUTJTMUZUA - - 4 11546-2:1995 . . 2. - ( ) ISO 11546-2:1995 Acoustics Determination of soundinsulation performances of enclosures Part 2: Measurements in situ (for acceptance and verificationpurposes). , - , . - EII

3、 31298.220055 7 2006 . 183- 31298.22005 ( 11546-2:1995) 1 2007 .6 23628 79 ( ) - . - , -. , 2006 -, III 31298.220051 .12 13 24 35 .56 57 68 .89 .810 9 () .10 () - 11 () .12 D () 15 () - 11546-2:1995 .16 F () , - .1718IV 31298.22005 2 Noiseofmachines.Determinationofsoundinsulationperformancesofenclos

4、ures.Part2. Measurementsinsituforacceptanceandverificationofdeclarednoiseperformancevalues1 . -,. 31298.1,-23426.,-1.,(,)., .2 -: 1716882 . 1718781 . 2342679 . 272432005(3747:2000) . 3045797(9614-193) .-. 306832000(1120495) .-.- 306912001( 487196) . 1 31298.22005( 11546-2:1995) 20070101 311692003(11

5、202:1995) .-. 311722003(11201:1995) .-.- 312522004(3740:2000) . 312742004(3741:1999) . 312752002(3744:1994)1).-.- 312762002 ( 3743-1:1994, 3743-2:1994)1) . - . - 312772002 ( 3746:1995)1) . - . - 31298.12005 ( 11546-1:1995) . .1. - , 1 ,. (), -().,.3 .3.1 (A-weighting): -171871.3.2(enclosure):,()().

6、,(.4).3.3 (sound pressure level) Lp, : , .20(2c215105).3.4 (average sound pressure level) Lp, : -,LnpLL Lpp pnc61c43c43c43c230c232c231c231c246c248c247c2471010 10 1001 01 0112lg., ,1)5140199(374494),5140099(3743-194,3743-294) 5140299(374695).2 31298.22005LLpp12, ,Lpn, n .3.5 (sound power level) LW, :

7、 , . 1(1012).3.6 (averagesoundpowerlevel) LW,:-,LnWLL LWW Wnc61c43c43c43c230c232c231c231c246c248c247c2471010 10 1001 01 0112lg., , LLWW12, ,LWn,n.3.7 (sound power insulation) DW, : ,.3.8 (A-weighted sound powerinsulation) DWA, : , ,.3.9 (soundpressureinsulation) Dp, :- , .3.10 (A-weightedsoundpressu

8、reinsulation) DpA, :.3.11 (estimated noise insulation due to the enclosure) DWA e,DpA e, : , DW Dp, (.).3.12 (weightedsoundpowerinsulation)DWw, : , 2, RDW.3.13 (fill ratio) c106: .,31275.3.14 (leak ratio) c113: (, .) , -.1 .2 , , c121 (sealratio)(c121c113c611/ ).4 - , . , , . -,. .3 31298.22005- . , , () , . , , . ( c113 0,02), -. - , . , - DW, w(. 3.12). - , . - , . , - -. 1 . ()